| 石斛多糖体外抗氧化活性的研究 |
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| 引用本文： | 查学强,王军辉,潘利华,罗建平,吕明明.石斛多糖体外抗氧化活性的研究[J].食品科学,2007,28(10):90-93. |
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| 作者姓名： | 查学强 王军辉 潘利华 罗建平 吕明明 |
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| 作者单位： | 合肥工业大学生物与食品工程学院； 合肥工业大学生物与食品工程学院 安徽合肥230009； 安徽合肥230009； |
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| 基金项目： | 教育部博士学科点专项科研基金项目(20060359006)，安徽省自然科学基金项目(00041508) |
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| 摘 要： | 本实验利用对邻苯三酚自氧化体系产生的超氧阴离子自由基(O2·)的清除作用、Fenton反应检测对羟基自由基(·OH)的清除作用以及对烷基自由基引发的亚油酸氧化体系的抑制作用,对霍山石斛和铁皮石斛多糖抗氧化活性能进行了研究。结果表明,两种多糖对超氧阴离子自由基和羟基自由基具有不同程度的清除作用,同时对烷基自由基引发的亚油酸氧化体系也有显著的抑制作用。研究还发现霍山石斛多糖的抗氧化能力显著强于铁皮石斛多糖。
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| 关 键 词： | 霍山石斛 铁皮石斛 抗氧化 多糖 自由基 |
| 文章编号： | 1002-6630（2007）10-0090-04 |
| 修稿时间： | 2007-07-20 |
Study on Antioxidant Activity of Polysaccharides from Dendrobium Species |
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| ZHA Xue-qiang,WANG Jun-hui,PAN Li-hua,LUO Jian-ping,L Ming-ming.Study on Antioxidant Activity of Polysaccharides from Dendrobium Species[J].Food Science,2007,28(10):90-93. |
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| Authors: | ZHA Xue-qiang WANG Jun-hui PAN Li-hua LUO Jian-ping L Ming-ming |
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| Affiliation: | School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei 230009, China |
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| Abstract: | The antioxidant activities of polysaccharides from Dendrobium huoshanense and Dendrobium candidum were evaluated by scavenging activities of superoxide anion (O·2) generated by pyrogallol autoxidation system and hydroxyl free radicals (·OH) generated by Fenton reaction and inhibiting activity of oxidation system of linoleic acid induced by alkyl radical. Results showed that polysaccharides from the two Dendrobium species had distinctive scavenging effects of superoxide radical and hydroxyl radical and their inhibition responses on oxidation system of linoleic acid induced by alkyl radical were also remarkable. In addition, the antioxidant activity of polysaccharides from Dendrobium huoshanense was stronger than that of Dendrobium candidum. |
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| Keywords: | Dendrobium huoshanense Dendrobium candidum antioxidant polysaccharide free radical |
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